Diluted Petroleum Asphalt (DPA)
These are blends of asphalt cements made with solvents to increase PAC fluidity. Depending on the solvent that is used, one can make quick cure asphalt (QC) using naphtha, medium cure (MC) using kerosene, or slow cure (SC) using diesel.
This classification is in accordance with the solvent evaporation rate. Because they are volatile, the solvents evaporate after being applied and make the asphalt cement rigid.